Initial maintenance: Except for the emulsified asphalt surface treatment, which should be opened to traffic only after the water evaporates and the road is basically formed after demulsification, other treatments can be opened to traffic after rolling. At the beginning of the opening of the road, a special person should be appointed to direct the traffic or set up obstacles to control the driving, and the asphalt mixing station should ensure that the entire width of the road surface is evenly compacted. The driving speed should be limited to no more than 20km/h before forming.

Asphalt mixing plants are necessary industrial equipment for current construction sites, mainly used for the production and processing of asphalt and concrete. Used in road, grade road, urban road, airport and port construction. After all, it is a large-scale industrial equipment, and relevant common problems must be solved to ensure the safety of operators. Today, I will briefly introduce to you the common problems in the use of asphalt concrete mixing machinery.

Modified asphalt equipment is a common road construction equipment. In order to better apply this type of equipment, construction personnel need to be familiar with the performance characteristics of each component and understand its function. Only in this way can the normal use of the equipment be guaranteed in daily applications and its function be maximized.

I. The basis for the classification of asphalt mixing plant models
The models of imported asphalt mixing plants are mainly divided according to the following three aspects:
1. Production capacity: According to the size of production capacity, asphalt mixing plants can be divided into small (30-60 tons/hour), medium (60-300 tons/hour) and large (300 tons/hour or more).
2. Functional characteristics: Different models of asphalt mixing plants have different functional configurations, such as asphalt batching system, interference screening system, thermal regeneration system and asphalt storage system, etc., to meet the needs of different road construction projects.

I. Capacity comparison analysis
Small mixing plants can process 20-60 tons of mixture per hour, which is suitable for county and township roads or sporadic repair projects; large mixing plants have a capacity of more than 200 tons/hour, which can meet the needs of high-intensity construction such as highways. When choosing, it is necessary to combine the project schedule and the average daily usage for comprehensive calculation.

The development prospects of the asphalt mixing plant are very good, and the product competition in the market is also very fierce. When the equipment is in use, uneven wear of the supporting wheels and wheel rails often occurs, and sometimes some abnormal noises and edge gnawing occur. The main reason for this is that after the asphalt mixing plant has been working for a period of time, its drying drum is subjected to high temperature and friction occurs between the supporting wheels and wheel rails.